My Dad's great-uncle did a huge research on the family with documents and references back to the 8th century (not continuous, of course). It's pretty solid back into the 14-15th century.
My Dad did the job of translating it all from Hungarian to English and bringing it up to date. He gave a copy to the Hungarian National Archives in Budapest. A lot of the reference material was lost in WWII.
I'll probably be the one to put it into some electronic format or integrate it online somehow and see if some distant relatives show up.
Has anyone used Ancestry.com or some other software for this?